UA12809U - Method for drilling-round mine working - Google Patents

Abstract

The method for drilling-round mine working with drill apparatus on wheel-rail chassis without restricting the range of the front of the working in which one changes the position of the drill apparatus with respect to the surface being drilled round through its discrete displacement, this is performed with stepping hydro-mechanical system with outriggers and jacks with hydro-cylinders of horizontal and vertical displacement, respectively, with use of power of the flow of high-pressure working liquid and with provision of stability of the unit with respect to overturn. Besides that, the high-pressure working liquid flow is divided to equal parts and supplied to connected in pairs hydro-cylinders of outriggers of horizontal displacement of drill apparatus.

Description

Description of the invention

The useful model relates to the mining industry, in particular to drilling equipment with wheel-rail 2 movement along the working, as a method laid at the basis of drilling rigs intended for carrying out mining workings, construction of special chambers, workings near shaft yards, double-track crosscuts and other workings, the width of which greater than the width of the drilling zone of the installation from one position.

Characteristic features of the operation of the equipment for conducting mining operations are the high saturation of the extraction by means of the mechanization of tunneling works. In the hole, or at a close distance from it, as a rule, 70 are located: a drilling rig, a loading machine, trolleys, an electric locomotive, a charging machine, a machine for installing fasteners and other equipment. During the production, one rail track is laid in it, and therefore, depending on the technological operation performed at each time interval, it is always necessary to arrange the above-mentioned machines in such a way as to ensure the possibility of their work and mutual warm-up and at the same time maintain the legally regulated safe gaps between the walls of the production and 12 means of mechanization. Therefore, in the design of the machines or in addition to them, equipment should be provided for the release of the rail track by the machine in case of technological necessity. If the production has a width greater than the width of the drilling zone of the rig from one position, there is also a need to mechanize the movement of the drilling rig in the transverse direction, i.e. along the front of the disturbed hole.

A well-known method of frontal mining of mining, which is implemented by drilling rigs on a wheel-rail chassis of the firm Atlas Copco (Sweden) - the Kaiyiagia model! 422 (11), Tamrok (Finland) - model RMG 207M (2), Novogorliv Machine-Building Plant (Ukraine) - UBSH 252 |ЗЙ. With this method, the drilling rig is placed frontally (perpendicularly) to the hole, while the width of the disturbance is within the deviation of the manipulator with the drilling body from the longitudinal axis of the machine in both directions. The deviation should be such that the position of the machine that is resistant to overturning is maintained. Rail grips or special retractable or retractable supports are usually used to strengthen the resistance against 22 overturning. At the same time, there is a limitation in the use of the machine for boring holes, the width of which exceeds the technical capabilities (the width of the drilling zone of the installation from one position). In addition, with the existing method of incitement, it is necessary to take into account the impossibility or technical and organizational complexity of solving the issues of mechanized release by installing a rail track in any place of the mine for the passage of a loading machine, a mining wagon or other means of mine transport. Ha")

In turn, there is a well-known method of disturbing the hole without limiting its width, which is carried out due to the discrete transverse movement of the machine from the rail track using rolling platforms, guide rails, transverse rollers, rotating levers, lifting hydraulic jacks and displacing horizontal Ha hydraulic cylinders (4; 5) , which implement the transverse movement of the machine. At the same time, there are significant disadvantages, namely: the relatively low stability of the machine against overturning both in the working position when processing a hole and in maneuvering modes, and the related impossibility of maneuvers along a complex trajectory of transverse movement due to due to the non-rectilinear profile of the front and sole of the product, low operational efficiency and efficiency of movement, structural complexity of the implementation of the operations of this method. "

The closest of the known technical solutions to the implementation of the method of mining the mine without limiting its 50 width (front) with solving the issues of freeing the rail track in any place of the mine for the passage of other means of penetration and simultaneously preserving the increased stability of the installation against overturning, increasing

In terms of productivity and labor safety, as well as the structural perfection of the mechanism of transverse movement of the installation, there is a method that is implemented with the help of a drilling rig |b), which is created with the help of a drilling rig (b), which is created using technical solution (7).

A characteristic feature of the method of digging wide potholes using the prototype is that it enables the possibility of changing the location of the drilling rig by moving it discretely in the transverse direction without a rolling platform and at the same time preserving the increased resistance of the machine against overturning regardless of the width of the production front. because In turn, the experience of operating the drilling rig in the conditions of the "Rovenkyanthracite" DHC, where the above method was implemented, revealed a number of shortcomings. The main ones are: distortions and additional dynamic loads in the structures of the transverse movement mechanism, oscillations and shaking of the rig with transverse movement, as well as the limitation of its adaptation to the curvilinear shape of the front and the sole of the product during the specified movement, which arise as a result of the indirect effect of the uneven distribution of the mass of the installation between the points of its support on the sole of the product. 29 The listed disadvantages are related to the fact that the center of mass installation 1 (Fig. 1-13) both in the initial and final position, c and throughout the entire cycle of transverse movement of the installation is always located asymmetrically with respect to its support points 2, З, 4, 5 (Fig. 2) on the sole of the product. Therefore, reactions from the force of the earth's gravity at these support points, as well as at points 44 and 45 (Fig. 3), in which the movable 43 and stationary 42 outrigger guides are in mutual contact iv, will be unequal as a result of which the resistance to transverse movement in each pair of guide 60 outriggers 10, 11, 12, 13 (Fig. 2) will also be unequal, which will lead to an unequal effort on each of them (outriggers) hydraulic cylinders, respectively 14, 15, 16 ,17 (Fig. 14).

Thus, with the simultaneous supply of working fluid to the hydraulic cylinders 14,15,16,17, the movement and movement of the part of the installation and the pair of hydraulic cylinders, which has a smaller resistance to movement and accordingly requires less pressure in the hydraulic system, will start first. These, for example, will be hydraulic cylinders 14 and 15 (Fig. 14), which move the rear (lighter) part of the installation. The second pair of hydraulic cylinders 16 and 17 at the beginning of the movement process will remain motionless, so the machine will start to be tilted by cylinders 14 and 15 relative to its initial position and an additional load will be placed on the structural elements of the transverse movement system ("stepping") of the installation, which will lead to an increase in pressure in the hydraulic system. Yes will continue until then

The moment until the pressure in the hydraulic system reaches a value sufficient to start the movement of the second pair of hydraulic cylinders 16 and 17, and they will begin to move the front part of the installation. The latter will lead to a decrease in machine skew, a decrease in pressure in the hydraulic system, and to the stopping of the movement of the second pair of hydraulic cylinders 16 and 17, and will also cause the further movement of the first pair of hydraulic cylinders 14 and 15, that is, the movement of the installation will not be carried out simultaneously, but by alternating movement of the two pairs of hydraulic cylinders and will lead to to additional dynamics, shaking of the 7/0 machine and to non-target loads in its structural elements.

An experienced operator by alternately turning on and off at the right time the supply of working fluid to the corresponding pairs of hydraulic cylinders can partially reduce the manifestation of the above shortcomings, but it is impossible to completely avoid them with the existing scheme of supplying the working fluid to the hydraulic cylinders of the outriggers and the existing control method.

The purpose of the useful model is to increase the efficiency of the process of revetment of wide mine workings and increase the reliability of the mining complex as a whole.

The set goal is solved due to the fact that in the method of disturbing the mining workings with a drilling rig on a wheel-rail chassis without limiting the length of the front of the workings, in which the location of the drilling rig is changed in relation to the disturbed surface of the outcrop by its discrete movement, which is performed by a "stepping" hydromechanical system in of outriggers and jacks with hydraulic cylinders of horizontal and vertical movement, respectively, and use the energy of the flow of high-pressure working fluid and ensure the stability of the installation against overturning, the flow of high-pressure working fluid is divided into equal parts and fed to the paired hydraulic cylinders of outriggers of horizontal movement of the drilling rig.

The specified method is implemented in a drilling rig that has a wheel-rail chassis with two pairs of wheels placed on the output shafts of the unit’s longitudinal displacement reducer, the drive motor of the hydraulic system pump and longitudinal displacement reducer, outriggers with fixed and movable guide and horizontal hydraulic cylinders, jacks with vertical hydraulic cylinders, a rack with a hydraulic tank, a manipulator with a drill head feeder, hydraulic blocks for controlling hydraulic cylinders of outriggers, jacks and a manipulator, a control panel, control devices, a lubrication system, inlet filters, equipment for connecting the installation to the mine power network, and water supply, which is distinguished by the fact that it supplemented with a high-pressure working fluid flow divider, the input of which is connected to the output of the jack control hydraulic block, and the input of this hydraulic block is connected to the output of the hydraulic system pump, while the flow divider outputs are connected to the outrigger control hydraulic block inputs.

Thanks to the proposed operation of the method and the above-mentioned addition to the drilling rig during its lateral movement, there are no oscillations, loosening, distortions and, as a result, additional dynamic "loads" in structural elements, the "stepping" system, as well as in the machine as a whole.

During the comparative analysis of the proposed technical solution with the known level of technology, no influence of the known solutions on achieving a positive result was found, in addition, the machine (installation) acquired potential opportunities for its use in any place of production, including for drilling for anchoring, " selection of stakes, tunneling of subway tunnels and increasing the efficiency of tunneling works due to the non-rectilinear shape of the front or sole of the tunnel, including the need to step the installation along a curved trajectory. ;" Thus, the proposed technical solution meets the requirements of inventiveness and novelty.

The essence of a useful model is explained by drawings and a description of the interaction of the component elements of the installation.

Figure 1 shows the proposed drilling rig, side view. Fig. 2 - the same, section A-A in Fig. 1, - while the platform of the operator 42 is not shown, and the moving guides with jacks are shown in dotted lines.

Fig. 3 is the same, section B-B in Fig. 1, where the elements of one of the four mechanisms for the transverse movement of the installation are shown.

Go! Fig. 4-13 shows the diagram of the transverse movement of the installation:

Fig. 4 and 5 - the position of the installation on the jacks, Fig. 4 - when all the movable guides of the outriggers are retracted, Fig. 5 o - when all the movable guides of the outriggers are extended, Fig. - the position of the installation on the rails, when all are movable

Ge) guides of jacks and outriggers are retracted;

Fig. 7 - the position of the installation on the jacks, the movable guides of the left side are retracted, the right side are extended (starting position for transverse movement of the installation);

Fig. 8-13 - successive positions of the installation during its transverse movement.

Fig. 14 shows the elements of the hydraulic circuit of the prototype, activated during transverse movement from the installation. Fig. 15 - the same proposed technical solution.

The method and drilling rig based on it is implemented as follows.

The installation is connected to the mine power supply network (compressed air or electricity) and the Water supply (used to remove the destroyed rock from the hole and for its dust suppression), perform the necessary organizational and preparatory measures and the engine 32 (Fig. 1), located on the longitudinal movement reducer 31 with the help of a wheel-rail chassis, the ZO is moved along the rail track to the slaughter of the product, where it is stopped. The engine 32 is disconnected from the gearbox 31 by a special mechanism (not shown in the figure) and connected to the pump 18 (Fig. 2, 14, 15), then the control panel 41 (Fig. 1) activates the engine 32 and b5 pump 18 (Fig. 2) and thus the hydraulic system of the installation creates the energy of the hydraulic flow of the working fluid.

With the help of hydraulic blocks 19, 21, 22 (Fig. 2, 6) vertical hydraulic cylinders 6, 7, 8, 9 (Fig. 15) jacks

2, C, 4, 5 (Fig. 1, 2) the installation is lifted, detaching it from the rail track with retracted (Fig. 4) or extended (Fig. 5) movable guides 43 (Fig. 3) outriggers 10, 11, 12, 13 (Fig. 2). With the help of the hydraulic unit 37 (Fig. 2), the hydraulic cylinders of the manipulator 34 (Fig. 1) sequentially direct the drilling machine 35 to the points of the recess in which the holes need to be drilled, the corresponding elements of the control panel 41 include the drill head 36 and the mechanism for feeding it to the recess and thus disturb him.

If the width of the hole is greater than the width of the drilling zone of the installation from one position, then the installation is lowered onto the rail track with jacks (Fig. b), the movable guides 43 (Fig. 3), for example, on the right side, are pushed out and lifted with jacks, detaching it from the rail track (Fig. .7). Horizontal hydraulic cylinders 14,15,16,17 70 (Fig. 3, 15) of outriggers 10, 11, 12, 13 (Fig. 2) move the installation in the transverse direction, retracting the movable guides of the starboard outriggers and extending the movable guides of the port side, transferring to the position shown in Fig.8. In this way, the installation will move in the transverse direction for one interval, and if this is not enough, then it is lowered, resting the wheels against the sole of the product or against the substrates (for example, sleepers) (fig. 9), then the movable guides of the outriggers on the left side are retracted, and the right side is extended ( Fig. 10), the installation is lifted with the vertical hydraulic cylinders of the jacks, detaching it from the sole of the product or the supports (Fig. 11), with the horizontal hydraulic cylinders of the outriggers, it is moved to the right, transferring it to the position shown in Fig. 12, then it is lowered, resting the wheels against the sole of the product or substrate, extend the movable guides of the left side and lift again with jacks (Fig. 13). Thus, the installation moves in the transverse direction for two intervals from the initial position and can continue drilling holes from this position, or perform the next interval of the transverse EAR of Stepping").

Similarly, the installation can release the rail track at any place of the production for the passage of a loader, an electric locomotive or other vehicles.

At the same time, the role and place of operation of the method and additions to the drilling rig are given above.

The proposed invention is intended for use in industry, carried out with the help of well-known components (engines and pumps, hydropneumatic equipment, drilling head and other components and materials that have passed industrial approval and are serially produced by industry), scientifically based methods, and implementation as part of the modified drilling rig UBSH 227 ensures the achievement of the technical result that the authors envisioned, and the requirements of industrial suitability are met. Gee! from Sources of information 1. Kaiyagi single-shaft drilling rig! 422. Ashaz Sorso Scide VOOK, Opdecdgoipa Ediirtepi 28, about 1986/1987. with 2. RMG 207M rail drilling rig with two MP 600G booms. Advertising prospectus of the company

TAMKOSK, 1983, Tatre U/a Tatgosk, 5E 33310 Tatrege 31, Ripiapa, Telex 22193 gosk vi. with

Z. Drilling mine installation UBSH252. ODO "Novogorlovsky Machine-Building Plant", 2001, Bach «- (06242)-79-2-76. 4. 5 218096 E21С11/02, 29/22, 08/17/1966. 5. BU 626201 Е21С29/22, 11/02, 04/29/1977. 6. Multifunctional pneumatic drilling rig UBSH229. V.F. Alekseev et al. "Coal"

Ukrain!", Mo5, 1998, pp. 20-23. shsh p 7. ShA 4282502 7E21С11/02, 29/22, 15.11.2001. Byul. Mo10. 8. Trial sample UBSh229 without major repairs for more than four years. N .T. Zanin, "Ugol Ukrain!", i? Mo5, 1999, p. 30-31. a 45

Claims (1)

The formula of the invention is a method of drilling a mine working with a drilling rig on a wheel-rail chassis without limitation on the length of the working front, in which the location of the drilling rig is changed in relation to the disturbed surface of the outcrop by means of its discrete movement, which is performed by a stepping hydromechanical system consisting of outriggers and jacks with hydraulic cylinders, respectively horizontal and vertical Ge; moving and using the energy of the flow of high-pressure working fluid and ensuring the stability of the installation against overturning, which is distinguished by the fact that the flow of high-pressure working fluid is divided into equal parts and fed to the paired hydraulic cylinders of the outriggers of the horizontal movement of the drilling rig. p. 60 b5